CR feedback: Change comment from 'typical' to 'default'

Author: SteveSandersonMS

src/Microsoft.AspNetCore.SpaServices.Extensions/SpaOptions.cs

@@ -15,7 +15,7 @@ public class SpaOptions
         /// <summary>
         /// Gets or sets the URL, relative to <see cref="UrlPrefix"/>,
         /// of the default page that hosts your SPA user interface.
-        /// The typical value is <c>"index.html"</c>.
+        /// The default value is <c>"index.html"</c>.
         /// </summary>
         public string DefaultPage { get; set; } = DefaultDefaultPageValue;